John creigiiton



(No Model.)

J. GREIGHTON.

PULVBRIZER ATTACHMENT FOR FLOWS.

No. 439,587. PatentedOot. 28, 1890.

W @7770 G'QLy/ZZZT .zilzamzey UNITED STATES PATENT OFFICE.

JOHN OREIGHTON, OF HARTFORD, OHIO, ASSIGNOR OF ONE-HALF TO CLINTON H.DRURY, OF SAME PLACE.

PULVERIZER ATTACHMENT FOR PLOWS.

SPECIFICATION forming part of Letters Patent No. 439,587, dated October28, 1890. Application filed July 19, 1890. Serial No. 359,272. (Nomodel.)

To all whom it may concern.-

Be it known that I, J OHN'CREIGHTON, a cit-i- Zen of the UnitedStates,and a resident of Hartford, in the county of Trumbull and State of Ohio,have invented certain new and useful Improvements in PulverizerAttachments for Flows; and I do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to lettersof reference marked thereon, which form a part of this specification.

Figure 1 of the drawings is a front viewin perspective. Fig. 2 is afront view of the blades.

This invention relates to certain improvements in pulverizer attachmentsfor plows; and it consists in the novel construction and combination ofparts as hereinafter disclosed.

In the drawings, A refers to the beam, and B to the handles, of anordinary plow.

0 represents my pulverizer attachment consisting of the rod 0' and theseries of laterally-curved blades O for pulverizing the earth, saidblades being disposed edgewise and obliquely to the ground, but havingtheir shanks twisted into plate or flat portions 0, standing at rightangles to the plane of the blades. The shank c of the blades 0 areprovided with longitudinal slots 0, receiving screw-bolts c engaging aplate or bar-like portion 0 of the rod 0 to permit the verticaladjustment of the blades, as circumstances may demand.

The rod 0 is of spring metal, and rests upon and transversely of thehandles 13 at their conjunction with the beam, being bolted at one endto one handle and passing loosely through a staple or eyebolt cl,secured to the other handle and having its plate or bar-like portion 0projecting beyond the latter at one side of the plow.

The rod 0 is formed with a number of coils intermediately of its boltedor secured end, and its plate or bar-like portion 0 serving as a coiledspring f to permit the blades or pulverizers O to readily yield in eventof contact with obstructions, thus preventing the breaking of theattachment.

It will be seen that by means of this attachment the blades pulverize orcut up the earth just as it is turned up by the plow and while yet moistor soft.

Having described this invention, what I claim, and desire to secure byLetters Patent, 1s

1. The plow attachment provided with the series oflaterally-curvedblades having fiat or platedike shanks provided with verticallongitudinal slots, in combination with the rod having the plate orbar-like portion and screw-bolts connecting said blades to said barlikeportion of said rod, substantially as set forth.

JOHN OREIGHTON.

Witnesses:

LINEUS CREIGHTON, C. H. DRURY.

